"WASHINGTON - The leading Democratic candidates all believe climate change is an existential threat to the planet and have vowed to bring U.S. greenhouse gas emissions down to net-zero by 2050.

While the candidates have the same broad goals, they vary in their approaches."

Candidates covered include Joe Biden, Michael Bloomberg, Pete Buttigieg, Amy Klobuchar, Bernie Sanders, Tom Steyer, Elizabeth Warren, and Andrew Yang.

Valerie Volcovici and Timothy Gardner report for Reuters January 22, 2020. [2]